[Jinrikisha (Komusou.)] My Cousin Is Too Much!!

An anxious cousin is overwhelmed by his older sister's massive, trembling breasts that dominate every panel and make his breathless panic palpable. She teases him with soft, heavy mounds, forcing him to navigate the intense sensation of being swallowed by her flesh while his arousal rises despite his protests. The tension escalates as the intimate encounter builds toward a climax that mirrors the bold claim that his cousin is simply too much.